TYPHOID FEVER IX DISTRICT OF COLUMBIA. 
123 
Depth. — Deep; below surface, 147 feet; water, 68 feet. 
Sewer. — Depth, 9 feet; distance from well, 15 feet. 
Privies . — One in block; 1 other within thi'ee blocks. 
Location. — Thhd and M streets SE. (northwest corner). 
Condition. — Out of order. 
Depth. — Deep; below surface, 223 feet; water, 188 feet. 
Sewer. — Depth, 10 feet; distance from well, 6 feet. 
Privies. — Fom in block; 6 within radius of one block. 
Location. — Second street and Xorth Carolina avenue SE. (northeast corner). 
Condition. — Out of order. 
Depth. — Deep; below surface, 233i feet; water, 172 feet. 
Sewer. — Depth, 12 feet; distance from well, 20 feet. 
Privies. — One in opposite block. 
Location. — Fourteenth and C streets SE. 
Condition. — Out of order. 
Depth. — Deep; below surface, 149 feet; water 83 feet. 
Sewer. — Depth, 12 feet; distance from well, 15 feet. 
Privies. — Eighteen within radius of one block. 
Xo. 182. 
Location. — Stanton avenue near T street SE. (Hillsdale, D. C.). 
Kind. — Iron. 
Condition. — Fan; set on brick base; surface drainage; residents say water is “no 
good” and do not use it. 
Depth. — Deep; below smlace, 130 feet; water, (?). 
Sewer. — Xone in neighborhood. 
Privies. — Xone within thi-ee blocks. 
Bacteriologically . — Good; practically sterile. 
Chemically. — ^Unpolluted. 
Xo. 184. 
Location. — Stanton and Elvan avenues SE. (Hillsdale, D. C.). 
Kind. — Special non pump. 
Condition. — ^V’orks with difficulty; water little used. 
Depth. — Deep; below sm’face, 1854 feet; water, (?). 
Sewer . — Xone in neighborhood. 
Privies. — Two within thi’ee blocks. 
Bacteriologically. — Good; practically sterile. 
Chemically. — Unpolluted. 
BACTERIOLOGY OF THE DEEP VTELLS IX THE DISTRICT OF COLI7MBIA. 
In the following table are given the results of the bacteriological 
examinations of the water of the deep wells. The number in the 
first column refers to our laboratory number. The analyses marked 
were made by ^Ir. F. F. Longley, chief chemist of the filtration 
plant. 
Mr. Longley’s results were furnished through the kindness of the 
officers in charge of the Washington filtration plant and are included 
in this table for purposes of completeness and comparison. 
